weatherstation.hpp

来自「深入浅出设计模式（书配套c++源代码)。包含20个设计模式的c++实现。」· HPP 代码 · 共 35 行

#ifndef	_HFDP_CPP_MEDIATOR_AUTO_HOUSE_WEATHER_STATION_HPP_
#define _HFDP_CPP_MEDIATOR_AUTO_HOUSE_WEATHER_STATION_HPP_

#include <process.h>

namespace HeadFirstDesignPatterns {
namespace Mediator {
namespace AutoHouse {

class WeatherStation : public Appliance {
	private: int _random;

	public: WeatherStation( Mediator* mediator ) : 
		Appliance( mediator ) { assert( mediator );
	}
	public: void off() {
		_mediator->output( "Weather station is off" );
	}
	public: void on( unsigned long value = 0 ) {
		srand( _getpid() );
		_mediator->output( "Weather station is on" );
	}
	public: void onEvent( unsigned long value ) const {
		_mediator->onEvent( this, value );
	}
	public: bool isRainning() {
		return ( rand() % 100 ) % 2 == 0;
	}
};

} // namespace AutoHouse
} // namespace Mediator
} // namespace HeadFirstDesignPatterns

#endif